Gas-engine.



G. A. LU NDY.

GAS ENGINE. APPLICATION rxmm'nno. a, 1912.

B092, 1 1 3. Patented Mar. 31, 1916 2 SHEETS-SHEET 1.

4642; J (KW/ G. A. LUNDY.

GAS ENGINE.

APPLICATION FILED DEC. 9, 1912.

Patented Mar. 31, 1914.

2 SHEETS-SHEET 2.

WITNESSES INVENTOR xxx/ C% 8 3 W %/Z m:

ATTORNEY hausted CHARLES A. LUNDY, F RENO, NEVADA.

GAS-ENGINE.

Specification of Letters Patent.

Patented Mar. 31, 19914.

Application filed December 9, 1912. Serial No. 735,590.

To all whom it may concern Be it known that I, CHARLES A. Lonny, a citizen of the United States, residing at Reno, in the chunty of VVashoe and State of Nevada, have invented certain new and useful Improvements in Gas-Engines, of which the following is a specification.

My invention relates to the class of gas engines.

My invention is, especially adapted for water-cooled engines, and jects to dispense with the use of puppet valves and to provide-a simple, effective and durable construction and arrangement by which the explosive mixture "is admitted to the cylinder, is exploded therein, and the products of explosive combustion are extherefrorn in timely succession.

To these ends my invention consists in the novel gas engine which I shall now fully describe by reference to the accompanying drawings in which- Figure 1 is a vertical section of my gas engine. Fig. 2 is a plan of the same.

1 is the crank case which is here shown as constituting the bed of the engine.

2 is the cylinder secured to the bed by bolts 3. The cylinder is here shown as provided with a water-jacket 1, for the reason that my invention as herein disclosed is applicable to water-cooled engines, because the cylinder is non-rotatable and, therefore, permits the necessary connections to be made.

5 is the piston; 6 is the connecting rod; 7 is the crank of the crank-shaft 8, and 9 is the fly wheel, all arranged according to accepted practice.

In the head 10 of the cylinder are made two ports. One of these 11 is the intake port, and the other 12, indicated in Fig. 1 by dotted lines and by the dotted arrow, is the exhaust port. These ports as is shown in Fig. 2 lie in the arc of a circle, in order that they may successively be registered with the port of the rotating valve-plate.

This valve plate is 13, and its 'single port-- is 14, as shown in Fig.1.

15 is a cap screwed upon the top of the cylinder 2. This cap is provided with an intake connection opening 16 which is vertically alined with. the intake port 11 of the cylinder.- The cap is also provided with an exhaust connection opening 17 which is vertically alined with'the exhaust port 12 of the cylinder.

it has for its ob The valve plate 13 is centrally pivoted and is rotated by the following connec tions. 18 is a shaft which carries the valve plate. 13. This shaft is journaled in the cap 15 in a suitable stufhng box 19, and it has on its upper end a gear 20. 21 is a short countersh'aft mounted in bearings 22 of the cap 15. One end of the counter-shaft carries a pinion 23 which meshes with the gear on the shaft 18. Its other end carries a bevel gear 241 which meshes with a bevel gear 25 on the upper end of a vertical shaft 26 mounted above in a bearing 27 on the cap 15 and below in a bearing 28 in the crank case 1. The lower end of the shaft 26 carries a. gear 29 which meshes with a gear 30 on the crank-shaft 8 of the engine.

Ball-bearings 31 are located between the upper surface of the valve-plate 13 and the under surface of the cap 15. In order to make a proper joint or hearing between the under surface of the valve plate 13 and the cylinder, I interpose between said plate and the cylinder top a smooth surfaced bearing plate 82 upon which the valve plate bears, and said bearing plate is provided with two sleeves 33, one of which extends down into the intake port 11 of, he cylinder head, and the other into the exhaust port 12 thereof, said sleeves havingpacking rings It will be seen by refer ence to Fig. 1 that the carrying shaft 18 of the valve plate 13, projects down through the bearing plate 32 and has fitted around its lower-end a spring 35, the function of which is to hold the bearing plate'up to the valve plate with yielding pressure suflicient to make a close joint, the proper lubrication of which is provided for by oil supplied to the space or chamber 36 left be tween the bearing plate and the cylinder top. This oil space or chamber is formed by reason of the fact that the walls of the cylinder-ports 11 and 12 rise above the cylinder top, as shown in Fig. 1, and the bearing plate lies above the tops of said walls.

37 is the spark plug.

It is to be understood that the gearing of the transmitting connections between the crank shaft 8 and the valve plate 13' will be proportionedto effect the timely rotation of said valve-plate, in order that its single port 14 will successively and in proper time register with and open and 'zclose the intake and exhaust connections and ports.

,tended above the upper surface of the cylining alined with the-exhaust portof the cylin- 60 register successively By the constructions shown it will be seen that the valve plate is well seated, is subject to a minimum of wear, and can be readily reached when necessary. Being well lubri- 5 cated, its action is practically noiseless, and

it will require but little attention.

Though I have herein shown but one cylinder, it is tobe understood that a plurality of cylinders may be used.

I claim .1. In a gas engine, the combination of a cylinder having separate ports in its head for the admission of the explosive mixture and the exhaust ofthe products of explosive combustion, said ports having their walls exwas head; a cap secured upon the cylinder ;'!and having an intake-connection opening alined with the admission port of the cylinder and a separate exhaust-connection opender; a rotatable valve-plate lying between the cylinder and its cap and having a single port adapted by the rotation of the plate to register successively with the alined connection openings of the cap and the ports of the cylinder head; a bearing plate having down wardly projecting sleeves packed in the ports of the cylinder head, said late lying in contact with the valve-plate and separated from the upper surface of the cylinder head to leave an intervening oil space; means for exploding the mixture in the cylinder; and means driven by the engine for efiecting'the timely rotation of the valve-plate.

2. In a gas engine, the combination of a cylinder having separate ports in its head for the admission of the explosive mixture and the exhaust of the products of explosive combustion, said ports having their walls inder head; a cap secured'upon the cylin er and having an intakeconnection opening alined with the admission port of the cylinder and afseparate exhaust-connection openin alined with the exhaust port of the cylin er; a rotatable valve plate lying between :the cylinder and its cap and having a single port adapted by the rotation of the plate to.

with the alined connecf tion openings of the cap and the ports of the cylinder head; a bearing plate having downwardly projecting sleeves packed in the ports of the cylinder head, said plate being separated from the upper surface of the cylinder head to leave an intervening oil space; means for holding said bearing plate up into contact with the valve plate; a shaft carrying said valve plate, said shaft extending upwardly through the cap. and downwardly into the oil space; and power transmitting connections from the engine to said shaft fordriving it to eflect said valve plate.

3. In a, gas engine, the combination of a cylinder having separate ports in its head for the admission of the explosive mixture and the exhaust of the products of explosive combustion; a cap secured upon the cylinder and having an intake-connection opening alined with the admission der and a separate exhaust-connection opening alined with the exhaust port of the cylinder; a rotatable valve-plate lying between the cylinder and its cap and having a single port adapted by the rotation of the plate to register successively with the alined connection openings of the cap and the ports of the cylinder head; a bearing plate fitted with packed sleeves in the ports of the cylinder head; a pivot shaft mounted in the cap and carryi the valve-plate, said shaft passing down t rough the bearing plate; ,a s ring around the lower end of the pivot sha arranged to press and hold the bearing plate in contact with the valve late; means for exploding the mixture in t e cylinder; and means for effecting the timely rotation of the valve-plate comprising the engine piston, the cran "shaft driven thereby, and power transmitting connections between said crank-shaft and the pivot-shaft which carries the valve-plate.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

CHARLES A. LUNDY.

the timely rotation of Witnesses:

'S. H. RosENrnAL, LEE J. DAVIS.

port of the cylin- 

